Default dictionary value

>>> from collections import defaultdict
>>> d = {'foo': 123, 'bar': 456}
>>> d['baz']
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
KeyError: 'baz'
>>> d = defaultdict(lambda: -1, d)
>>> d['baz']
-1

Source: stackoverflow.com

Similar codes

0 vote272 views1 answer
Pyinstaller onefile current working directory
Python
0 vote283 views1 answer
Split at the second occurrence of the element python
Python
1 vote308 views1 answer
How to find the length of a list in scratch
Python
1 vote294 views1 answer
Incognito mode in selenium
Python
0 vote341 views1 answer
Read tar.gz file python
Python
6 votes319 views1 answer
Django desc order
Python Django
3 votes277 views1 answer
Print the heat map python
Python
35 votes360 views5 answers
Drop column with nan values
Python
0 vote295 views1 answer
Start virtualenv with python version
Python
3 votes288 views2 answers
Python list comma separated string
Python